30493867 has 2 divisors, whose sum is σ = 30493868. Its totient is φ = 30493866.

The previous prime is 30493831. The next prime is 30493891. The reversal of 30493867 is 76839403.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30493867 - 2¹¹ = 30491819 is a prime.

It is a super-2 number, since 2×30493867² = 1859751849227378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30493817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15246933 + 15246934.

It is an arithmetic number, because the mean of its divisors is an integer number (15246934).

Almost surely, 2^30493867 is an apocalyptic number.

30493867 is a deficient number, since it is larger than the sum of its proper divisors (1).

30493867 is an equidigital number, since it uses as much as digits as its factorization.

30493867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 30493867 is about 5522.1252249474. The cubic root of 30493867 is about 312.4190450566.

The spelling of 30493867 in words is "thirty million, four hundred ninety-three thousand, eight hundred sixty-seven".